EP3674645B2 - Échangeur thermique à plaque - Google Patents

Échangeur thermique à plaque Download PDF

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Publication number
EP3674645B2
EP3674645B2 EP19190805.2A EP19190805A EP3674645B2 EP 3674645 B2 EP3674645 B2 EP 3674645B2 EP 19190805 A EP19190805 A EP 19190805A EP 3674645 B2 EP3674645 B2 EP 3674645B2
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EP
European Patent Office
Prior art keywords
connection pipe
cover plate
flanging
heat exchanger
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19190805.2A
Other languages
German (de)
English (en)
Other versions
EP3674645A1 (fr
EP3674645B1 (fr
Inventor
Zhifeng Zhang
Jun Luo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
    • F16L41/082—Non-disconnectable joints, e.g. soldered, adhesive or caulked joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0248—Arrangements for sealing connectors to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F28F2275/067—Fastening; Joining by welding by laser welding

Definitions

  • Embodiments of the present invention relate to a plate heat exchanger.
  • an opening is formed in a cover plate, and a connection pipe is fixed by soldering, brazing or welding to the cover plate at a position corresponding to the opening.
  • DE 10 2010 045 535 A1 discloses a plate type heat exchanger comprising a cover plate and a connection pipe.
  • the connection pipe is inserted into an opening of cover plate which opening is surrounded by a flanging protruding in a direction from the body of the cover plate towards an outside of the heat exchanger.
  • the end of the connection pipe which is inserted into the flanging has a less radial size than the body of the connection pipe.
  • the connection pipe comprises a step which is arranged in the middle of the body.
  • US 2015/0021904 A1 shows a brazed fitting assembly for a heat exchanger.
  • the heat exchanger comprises a cover plate and a connection pipe comprising a first end in contact with the cover plate.
  • the cover plate comprises a flanging in which the end of the connection pipe is inserted.
  • the heat exchanger plate next to the cover plate comprises another flanging which is inserted into the connection pipe.
  • DE 10 2005 050 738 A1 discloses a plate heat exchanger according to the preambles of claim 1 and claim 4, the document shows another heat exchanger of the plate type having a cover plate with an opening surrounded by a flanging.
  • a connecting pipe comprises a radial protrusion abutting against the end of the flanging of the cover plate.
  • EP 1 890 103 A1 shows a pipe connecting structure for a heat exchanger.
  • a connection pipe having an end of a larger diameter is mounted on a cover plate having an opening surrounded by a flanging.
  • the connecting pipe comprises a step which contacts the flanging of the cover plate.
  • An object of embodiments of the present invention is to provide a plate heat exchanger, for example, thereby reducing a difficulty of a process of soldering, brazing or welding a connection pipe to a cover plate.
  • Embodiments of the present invention provide a plate heat exchanger according to claim 1 or claim 4.
  • the second end of the connection pipe has a tapered shape, and has a radial size gradually increased in a direction from the first end of the connection pipe towards the second end of the connection pipe.
  • a connection pipe segment composed of the body and the second end of the connection pipe has a tapered shape, and has a radial size gradually increased in a direction from the first end of the connection pipe towards the second end of the connection pipe.
  • connection pipe abuts against the body of the cover plate.
  • the flanging has a cylindrical shape.
  • the difficulty of the process of soldering, brazing or welding the connection pipe to the cover plate can be reduced.
  • a plate heat exchanger 100 includes: a plurality of heat exchange plates 4; cover plates (or referred to as base plates or respectively referred to as the cover plate and the base plate) 1 respectively covering the plurality of heat exchange plates 4 on both sides of the plurality of heat exchange plates 4, and each including: a body 10; an opening 11 formed in the body 10; and a flanging 12 surrounding the opening 11 and protruding in a direction from the body 10 of the cover plate 1 towards an outside of the heat exchanger 100; and a connection pipe 2 including: a first end 21 and a second end 22 opposite to each other, and a body 20 between the first end 21 and the second end 22.
  • the flanging 12 may have a tubular shape, such as a cylindrical shape and a conical shape.
  • the first end 21 of the connection pipe 2 has a less radial size than the body 20 of the connection pipe 2
  • the connection pipe 2 further includes a step 23 between the body 20 and the first end 21 of the connection pipe 2, and the first end 21 of the connection pipe 2 is inserted in the flanging 12 of the cover plate 1.
  • the step 23 of the connection pipe 2 abuts against an end of the flanging 12 of the cover plate 1.
  • the plate heat exchanger 100 further includes: a heat exchange medium circulation pipe 3 inserted in the connection pipe 2, and having an end 31 abutting against the step 23 of the connection pipe 2. According to embodiments, referring to FIG.
  • connection pipe 2 and the cover plate 1 are prefixed together, for example by expanded-connecting, spot welding, or the like before they are soldered, brazed or welded.
  • connection pipe 2 and the cover plate 1 may be completely fixed by means of a seam 8 (referring to FIGS. 4, 5 , 6 , 8, 9 , 10 , 13 and 14 ) formed by soldering or brazing (for example by brazing) or a seam 8 (referring to FIGS. 3 , 11 , 12 , 15 and 16 ) formed by welding (for example by laser welding).
  • a part of the heat exchange medium circulation pipe 3 (such as a copper pipe or a copper alloy pipe) is inserted into the connection pipe 2, and then the heat exchange medium circulation pipe 3 and the connection pipe are connected together by means of a seam 8 formed by soldering or brazing (for example by brazing).
  • connection pipe has advantages such as excellent manufacturability, less manufacturing difficulty, and uneasy occurrence of manufacturing stress concentration.
  • connection pipe 2 when the connection pipe 2 is joined to the cover plate 1 by welding (for example by laser welding), a molten bath formed by welding is needed to penetrate the cover plate 1 and to have a certain depth in the first end of the connection pipe 2. Even if a welding power is excessively large so that the molten bath penetrates a pipe wall of the connection pipe 2, the heat exchange plate 4 will not be damaged. A penetrating depth requirement of the molten bath is considerably decreased. A depth of the molten bath is simply required to be greater than a minimal depth, and a requirement for a variation range of the depth of the molten bath is not high.
  • connection pipe 2 is joined to the cover plate 1 by soldering or brazing (for example by brazing), all the seams 8 are located inside the heat exchanger 100 so that an appearance will not be undermined by soldering or brazing metal.
  • the first end 21 of the connection pipe 2 has a tapered shape, and has a radial size gradually increased in a direction from the first end 21 of the connection pipe 2 towards the second end 22 of the connection pipe 2, thereby effectively ensuring convenience of assembling the connection pipe 2 with the cover plate 1 while reducing a gap between the connection pipe 2 and the flanging 12 of the cover plate 1 to guarantee soldering, brazing or welding quality.
  • the second end 22 of the connection pipe 2 has a tapered shape, and has a radial size gradually increased in the direction from the first end 21 of the connection pipe 2 towards the second end 22 of the connection pipe 2.
  • a connection pipe segment composed of the body 20 and the second end 22 of the connection pipe 2 has a tapered shape, and has a radial size gradually increased in the direction from the first end 21 of the connection pipe 2 towards the second end 22 of the connection pipe 2.
  • the remaining portion of the connection pipe 2 except the first end 21 has a tapered shape.
  • connection pipe 2 has a tapered wall. An inner diameter, at a side adjacent to the cover plate 1, of the connection pipe 2 is less than an inner diameter of a top of the connection pipe 2.
  • the connection pipe 2 may match heat exchange medium circulation pipes 3 of different sizes while it can be ensured that a soldering or brazing gap between the connection pipe 2 and the heat exchange medium circulation pipe 3 inserted in it is zero, improving the soldering or brazing quality.
  • the first end 21 of the connection pipe 2 includes a tapered portion 210 which has a radial size gradually decreased in the direction from the first end 21 of the connection pipe 2 towards the second end 22 of the connection pipe 2; and the flanging 12 has a tapered shape, and has a radial size gradually decreased in the direction from the body 10 of the cover plate 1 towards the outside of the heat exchanger 100.
  • the tapered portion 210 of the first end 21 of the connection pipe 2 may have a same taper as the flanging 12. Referring to FIG.
  • the first end 21 of the connection pipe 2 further includes a flange 211 which extends radially outwards from the tapered portion 210 of the first end 21 of the connection pipe 2 at a side of the tapered portion 210 facing away from the body 20 of the connection pipe 2, and which is in contact with the body 10 of the cover plate 1.
  • the flanging 12 of the cover plate 1 is inserted in the first end 21 of the connection pipe 2.
  • the first end 21 of the connection pipe 2 is inserted in the flanging 12 of the cover plate 1, and the flange 211 of the connection pipe 2 is in contact with a surface of the body 10 of the cover plate 1 facing away from the flanging 12.
  • the flange 211 is located between the heat exchange plate 4 and the cover plate 1.
  • a self-adaptive assembling structure is formed by the tapered portion 210 of the first end 21 of the connection pipe 2 and the tapered flanging 12, effectively ensuring an assembling gap, avoiding soldering, brazing or welding defects such as a rosin joint, and thus improving the quality of the seam.
  • a soldering, brazing or welding area can be effectively guaranteed, an assembling gap can be reduced, and thus the quality of the seam is improved.
  • a sealing can be achieved, a strength of a product can be increased, and the number of parts can be reduced.
  • the first end 21 of the connection pipe 2 has a greater radial size than the body 20 of the connection pipe 2
  • the connection pipe 2 further includes a step 24 between the body 20 and the first end 21 of the connection pipe 2
  • the flanging 12 of the cover plate 1 is inserted in the first end 21 of the connection pipe 2.
  • the flanging 12 includes: a tubular part 121 protruding in the direction from the body 10 of the cover plate 1 towards the outside of the heat exchanger 100; and a step 122 which extends radially inwards from the tubular part 121 at a side of the tubular part 121 facing away from the body 10 of the cover plate 1 and which is in contact with the step 24 of the connection pipe 2.
  • the plate heat exchanger 100 further includes: a heat exchange medium circulation pipe 3 inserted in the connection pipe 2, an end of the step 122 of the flanging 12 of the cover plate 1 facing away from the tubular part 121 extends into the body 20 of the connection pipe 2 when viewed in an axial direction of the connection pipe 2, and the heat exchange medium circulation pipe 3 has an end 31 abutting against the end of the step 122 of the flanging 12 of the cover plate 1.
  • an adaptive overlapping structure is formed by the flanging 12 of the cover plate 1 and the first end 21 of the connection pipe 2, thereby considerably increasing an overlapping area between the flanging 12 of the cover plate 1 and the first end 21 of the connection pipe 2, and thus greatly increasing a soldering, brazing or welding strength.
  • the end 31 of the heat exchange medium circulation pipe 3 abuts against the end of the step 122 of the flanging 12 of the cover plate 1, thereby positioning the heat exchange medium circulation pipe 3 that is externally inserted.
  • the plate heat exchanger 100 further includes: a heat exchange medium circulation pipe 3 inserted in the connection pipe 2.
  • the heat exchange medium circulation pipe 3 has an end 31 abutting against an end of the flanging 12 of the cover plate 1.
  • connection pipe 2 includes a column-shaped body 20, the cover plate 1 has a flanging 12 matching the connection pipe 2, and the connection pipe 2 is fixed to the flanging 12 by soldering, brazing or welding.
  • An end 31 of the heat exchange medium circulation pipe 3 abuts against an end of the flanging 12 of the cover plate 1, and a top of the flanging 12 of the cover plate 1 can position the heat exchange medium circulation pipe 3.
  • the connection pipe has a simple structure and can be conveniently manufactured.
  • a notch 5 is formed on an end surface of the flanging 12 of the cover plate 1 at a side of the end surface of the flanging facing towards an inner wall of the connection pipe 2 in a radial direction. Before soldering or brazing, a solder 6 is placed in the notch 5.
  • connection pipe in the case where the connection pipe is fixed by soldering or brazing, a risk of existence of solder residue on a surface of the heat exchanger can be eliminated, while in the case where the connection pipe is fixed by welding, an adverse influence of the depth of the molten bath on the heat exchanger can be remarkably reduced so that requirements for processing devices and setting of process parameters are no longer rigor.
  • the connection pipe and the cover plate can be fixed in a self-adaptive manner so that a prefixing process is no longer needed.
  • process parameters such as a stress state and a variation of a wall thickness of the connection pipe in processing the connection pipe are fully considered, and a structural design is optimized for these parameters, thereby effectively improving processing performance of the connection pipe and increasing a fatigue strength of the connection pipe.
  • a percent defective of the plate heat exchanger due to the soldering, brazing or welding of the connecting pipe can be reduced, the fatigue strength of the connection pipe can be raised so that an increase of a service life of the product is greatly besteaded, and requirements for a fixing device for the connection pipe and setting of corresponding process parameters during manufacturing are reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (6)

  1. Échangeur thermique à plaque (100) comprenant :
    une plaque de couverture (1) comprenant : un corps (10) ; une ouverture (11) formée dans le corps (10) ; et une bride (12) entourant l'ouverture (11) et faisant saillie dans une direction à partir du corps (10) de la plaque de couverture (1) en direction d'un extérieur de l'échangeur thermique (100) ; et
    un tube de connexion (2) comprenant : une première extrémité (21) et une seconde extrémité (22) opposées l'une à l'autre, et un corps (20) entre la première extrémité (21) et la seconde extrémité (22),
    dans lequel une de la première extrémité (21) du tube de connexion (2) et de la bride (12) de la plaque de couverture (1) est insérée dans l'autre de la première extrémité (21) du tube de connexion (2) et de la bride (12) de la plaque de couverture (1),
    dans lequel la première extrémité (21) du tube de connexion (2) présente une taille radiale plus petite que le corps (20) du tube de connexion (2), le tube de connexion (2) comprend en outre un cran (23), et la première extrémité (21) du tube de connexion (2) est insérée dans la bride (12) de la plaque de couverture (1),
    dans lequel le cran (23) du tube de connexion (2) est adjacent à une extrémité de la bride (12) de la plaque de couverture (1) et
    caractérisé en ce que un tube de circulation de fluide d'échange thermique (3) inséré dans le tube de connexion (2) et ayant une extrémité (31) adjacente au cran (23) du tube de connexion (2),
    dans lequel cran (23) est entre le corps (20) et la première extrémité (21) du tube de connexion (2)
    dans lequel la bride (12) présente une forme cylindrique.
  2. Échangeur thermique à plaque selon la revendication 1, dans lequel :
    la seconde extrémité (22) du tube de connexion (2) présente une forme conique et présente une taille radiale qui augmente graduellement dans une direction à partir de la première extrémité (21) du tube de connexion (2) en direction de la seconde extrémité (22) du tube de connexion (2).
  3. Échangeur thermique à plaque selon la revendication 1, dans lequel :
    un segment de tube de connexion composé du corps (20) et de la seconde extrémité (22) du tube de connexion (2) présente une forme conique et présente une taille radiale qui augmente graduellement dans une direction à partir de la première extrémité (21) du tube de connexion (2) en direction de la seconde extrémité (22) du tube de connexion (2).
  4. Échangeur thermique à plaque (100) comprenant :
    une plaque de couverture (1) comprenant : un corps (10) ; une ouverture (11) formée dans le corps (10) ; et une bride (12) entourant l'ouverture (11) et
    faisant saillie dans une direction à partir du corps (10) de la plaque de couverture (1) en direction d'un extérieur de l'échangeur thermique (100) ; et
    un tube de connexion (2) comprenant : une première extrémité (21) et une seconde extrémité (22) opposées l'une à l'autre, et un corps (20) entre la première extrémité (21) et la seconde extrémité (22),
    dans lequel une de la première extrémité (21) du tube de connexion (2) et de la bride (12) de la plaque de couverture (1) est insérée dans l'autre de la première extrémité (21) du tube de connexion (2) et de la bride (12) de la plaque de couverture (1),
    caractérisé en ce que la première extrémité (21) du tube de connexion (2) présente une taille radiale plus grande que le corps (20) du tube de connexion (2), le tube de connexion (2) comprend en outre un cran (24) entre le corps (20) et la première extrémité (21) du tube de connexion (2), et la bride (12) de la plaque de couverture (1) est insérée dans la première extrémité (21) du tube de connexion (2), dans lequel :
    la bride (12) comprend : une partie tubulaire (121) faisant saillie dans la direction à partir du corps (10) de la plaque de couverture (1) en direction de l'extérieur de l'échangeur thermique (100) ; et un cran (122) qui s'étend radialement vers l'intérieur à partir de la pièce tubulaire (121) sur un côté de la pièce tubulaire (121) orienté à distance du corps (10) de la plaque de couverture (1) et qui est en contact avec le cran (24) du tube de connexion (2),
    la bride (12) de la plaque de couverture (1) est insérée dans la première extrémité (21) du tube de connexion (2),
    un tube de circulation de fluide d'échange thermique (3) est inséré dans le tube de connexion (2),
    dans lequel une extrémité, orientée à distance de la pièce tubulaire, du cran (122) de la bride (12) de la plaque de couverture (1) s'étend jusque dans le corps (20) du tube de connexion (2) lorsque vu dans une direction axiale du tube de connexion (2), et le tube de circulation de fluide d'échange thermique (3) présente une extrémité (31) adjacente à l'extrémité du cran (122) de la bride (12) de la plaque de couverture (2) .
  5. Échangeur thermique à plaque selon la revendication 4, dans lequel :
    la première extrémité (21) du tube de connexion (2) est adjacente au corps (10) de la plaque de couverture (1) .
  6. Échangeur thermique à plaque selon la revendication 4, dans lequel :
    la bride (12) présente une forme cylindrique.
EP19190805.2A 2018-12-28 2019-08-08 Échangeur thermique à plaque Active EP3674645B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811632357.6A CN111397406A (zh) 2018-12-28 2018-12-28 板式换热器

Publications (3)

Publication Number Publication Date
EP3674645A1 EP3674645A1 (fr) 2020-07-01
EP3674645B1 EP3674645B1 (fr) 2021-08-04
EP3674645B2 true EP3674645B2 (fr) 2024-07-24

Family

ID=67587523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19190805.2A Active EP3674645B2 (fr) 2018-12-28 2019-08-08 Échangeur thermique à plaque

Country Status (5)

Country Link
EP (1) EP3674645B2 (fr)
JP (1) JP7462392B2 (fr)
KR (1) KR102698060B1 (fr)
CN (1) CN111397406A (fr)
ES (1) ES2889273T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7181271B2 (ja) * 2020-12-10 2022-11-30 株式会社日阪製作所 プレート式熱交換器
CN113263281B (zh) * 2021-05-18 2022-02-11 广州中益机械有限公司 一种薄板与厚板的焊接方法
CN114484905B (zh) * 2022-02-08 2022-09-27 枣庄福源环能机械制造有限公司 一种带有立柱减内压的构件的热水器内箱
WO2025242095A1 (fr) * 2024-05-20 2025-11-27 浙江盾安人工环境股份有限公司 Soupape de commutation

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KR20200083898A (ko) 2020-07-09
CN111397406A (zh) 2020-07-10
EP3674645B1 (fr) 2021-08-04
JP2020109345A (ja) 2020-07-16
JP7462392B2 (ja) 2024-04-05
ES2889273T3 (es) 2022-01-11
KR102698060B1 (ko) 2024-08-22

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